Assalaam walaikum,
I was thinking. This is a blessing. And we are Muslims. HE will replace with better.
Walaykumsalaam sister,
Actually natural disasters that befall on a people are due to it's inhabitant's sins and misgivings. It is like a warning & reminder from Allah subhaanaho waa taala to the people to return to deen of Islam.
All the muslims to whom this news has reached should be remorseful and make a lot of tawbah to Allah azz zawajal as this is certainly wrath that we have earned due to our misgivings and heavy sins. Even other creations of Allah azz zawajal such as animals & trees suffer due to the corruption of mankind on this earth.
May Allah azz zawajal guide us to that which pleases Him and keep us far apart from that which makes us incurs His wrath & displeasure. Ameen
Edit : Now that I think of it, I guess you were suggesting that this will unite the muslims towards helping our fellow brethren in Pakistan and increase the love between our hearts, which you view as a blessing. I get it.
Wasalaamalaykum waa rahmatullahi